Like me, you might be peering at the backside of an Acer Z5761 all in one computer and wondering about how to remove it. Other than the three screws fixing the stand to the chassis, there are none visible; there's no hardware manual to be found on the acer website; furtheremore, a google search pulls up a whole lot of links to Youtube with disassembly instructions featuring metal social security cards and hammers: the suggestion being that you pry the clips from the case and do it gently so you don't break all of them.
The good news is that it's a lot easier than that. Thanks to Nicolás Vanrell on Youtube for posting this link to the hardware manual with dissassembly instructions for the following Acer all-in-one models: Aspire Z3760 / Z3761 / Z5760 / Z5761